There are five main legal and regulatory constraints to consider for radio news production: 1) Handling stories involving minors and ensuring their protection, identity, and privacy. 2) Contempt of court by disregarding a judge's ruling and publishing restricted information. 3) Libel and defamation laws to avoid falsely damaging someone's reputation without cause. 4) Impartiality requirements around election coverage and not allowing political campaigning. 5) Official Secrets Act to protect classified information, locations, and security details.